.navbar-brand img {
  max-width: 400px;
  width: 100%;
  height: auto;
}

.nav .dropdown-menu {
    min-width: 180px;
}

.divider-outside-bottom:after {
    background: none;
}

.divider-outside-top:before {
    background: none;
}

 
@media (max-width: 768px) {
  .navbar-brand img {
    max-width: 260px;
  }
}